Machine for mixing or working up dough and other materials.



I A. A. VERHOEVEN.

MACHINE FOR MIXING 0R WORKING UP DOUGH AND' OTHER MATERIALS.

APPLICATION FILED DEC. I2. I9I4.

' Patented Oct. 17,1916.

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,ARNOLDUS ALo sIus vniaHoEvEN, or rireuae, NETHERLANDS. I I

' MACHINE Fort MIXING on WORKING UP nouG I AND OTHER MA'rERIALs.

To all whom it may concern:

Be it known that I, ARNOLDUS A oYsIUs VERHOEVEN, a citizen of theNetherlands, residing at Lange Nieuwstraat 25, Tilburg, the Netherlands,have invented new and useful Improvements in Machines for Mixing orWorking Up Dough and other Materials, of which the following is aspecification.

' This invention relates to machines for mixing or working up dough,paste and other materials, and has reference to im provements in thattype of such machines in which the mixing is effected in troughs placedin front of the machine by means of a mixing tool or agitator properremovably attached to one of the. extremities of a twoarmed lever, whichlever is pivoted so as to oscillate in two planes, the consequence beingthat the tool describes a closed path.

Various constructional forms of mixing -machines of this descriptionhave already been suggested but with these'constructions the mixing oragitating mechanism has been.

so connected by means of toothed gearing or other equivalent deviceswith the driving mechanism that the outer extremity of thebeforementioned. pivoted lever could only describe one predeterminedcircle. In

some of these constructions the extremityv of the lever was directlyconnectedto a hub cast with a toothed wheel forming part of the drivingmechanism while in other cases the extremity of the said pivoted leverwas connected to a forked rod, the other end of which terminated in asphere, wh ch sphere rested, as to a portion of its per phery, in

a corresponding recess in the toothed wheel. It will be seen that withall these constructions the outer extremity of the pivoted lever couldonly describe a single predetermined circular path, in other words that7 the mixing tool could only follow one predetermined curved path in thetrough. This involved the drawback that it was necessary to employ adifferent machine fora different size of trough, not only causingconsiderable expense but rendering 1t necessary to provide severalmixing machines in a. single installation and causing considerable lossof time.

My. present invention relates to an improved construction of mixingmachlne of the type under consideration in which a single machine can beemployed with troughs of various sizes.

In carrying out the invention the pivoted Specification of LettersPatent;

7 mensions;

PatentedOct. 17, 1916.

Application filed December 12, 1914. Serial No. 876,928.

lever having two arms and carrying at one end the mixing tool proper isconnected at V the other end with the extremity of a curved slidingpiece which piece is adaptedto be slid and fixed with respect to theex-,

tremity of a spindle in connection with the driving mechanism so thatthe radius of the circular path described by the end of the two-armedlever can be varied; The, sliding piece may be provided with acylindrical or Withthis constructionthemixing tool may be caused tofollow paths of various di:

7 One method of carrying outthe invention is illustrated by way ofexamplein the ace companying drawing, in which Figure lpis a sideelevation of the -machine, partly in section; Fig. 2 shows the curvedrod to a larger scale; Fig. 3 is a planof adetaila: r I

l is the framework of the machine, at the lower part of which is locatedan electric ries a toothed wheel 5, meshing with another toothed wheel6' keyed to a shaft 7. The shaft 7- is provided at one end with a heador boss 8 having an opening at right angles to the axis of the shaft(see Fig. 3). Through thls opening passes a rod 9 bent into the form ofan arc of a circle. This rod ,9 is fixed with respect to the head or aboss 8 by means of an adjusting setscrew 10. The rod 9 is provided atone end with acylindrlcal head 11 engagingin a correso vmotor 2, thedrivebeing eifected by means sponding opening or recess providedat oneend of the two-armed lever 12. This twoarmed lever 12 is rockable abouta pivot 13, which pivot is carried bya fork at the end of a verticalspindle 14: rotatably mounted upon the framework 1.

At the other end of the lever 12 is detachably mounted the agitating ormixing tool proper, 15, which in this case is formed from a bent rodwith a suitably shaped end.

As will be seen from the drawing, the end of the tool follows a closedpath so that the material to be mixed is agitated and kneaded to suitrequirements.

As has been mentioned already with mixing machines as usuallyconstructed, it is impossible to alter, according to requirements theclosed curved path described by i the end of the tool 15, that is tosayto make troughs of different sizes. This is'rendered possible by theadjusta'bilityof the arcshaped rod 9, the cylindrical head 11 upon whichthe rod can be made to follow circular pathsot different dimensionssliding the rod-9 Withrespect to the head or boss 8,

thus varying the circle described by the end of the two-armed lever 12.

What I claim and desire to secure by Letters Patent of the'United Statesof America 1.'In -.a mixing machinethe combination of a two-armed levervso p voted that it can oscillate in two planes at right angles to [oneanother, a mixing tool carried 'at one end of the lever, driving aXle,an angular rod having one member curved in an are e of a circleandjhaving a slidingconnection With-the axle, means for-adjustably$60111? ing the saidsliding curved member of the rod to the axle, andmeans of connectionbetween the other member of said angular rod and theend of the twoa'rmed lever remote from the mixing tool substantially asdescribed.

, In a mixing machine the combination of a two-armed lever, a rodrotatable about a vertical axle and 'havlng a fork 1n whlch the lever ismounted on a horizontal pivot,

a miXm-g tool earned at one end of the a slot, a recess in the endofth'e two-armed leverremotefrom the mixing tool and a cylindrical 1projection at the end of the othermem'ber of the rod engaging in thesaid name'to this specification in the presence of two subscribingWitnesses;

, mam mama-mam. "lVitnesses: i 5 f AVANDER GnAEPs, A. NELSON.

Copies of this patent may be obtainedfor five cents each, by addressingthe Commissi'oner of iatents.

' Washington, 1),C.

